Inheritance diagram for osgDB::ImagePager:

Collaboration diagram for osgDB::ImagePager:

[legend]

Classes
struct	ImageRequest

class	ImageThread

struct	ReadQueue

struct	RequestQueue

Public Member Functions
ImageThread *	getImageThread (unsigned int i)

const ImageThread *	getImageThread (unsigned int i) const

unsigned int	getNumImageThreads () const

void	setPreLoadTime (double preLoadTime)

virtual double	getPreLoadTime () const

virtual osg::Image *	readImageFile (const std::string &fileName, const osg::Referenced *options=0)

virtual void	requestImageFile (const std::string &fileName, osg::Object attachmentPoint, int attachmentIndex, double timeToMergeBy, const osg::FrameStamp framestamp, osg::ref_ptr< osg::Referenced > &imageRequest, const osg::Referenced *options)

virtual bool	requiresUpdateSceneGraph () const
	Return true if there are pending updates to the scene graph that require a call to updateSceneGraph(double). More...

virtual void	updateSceneGraph (const osg::FrameStamp &frameStamp)
	Merge the changes to the scene graph. More...

virtual void	signalBeginFrame (const osg::FrameStamp *framestamp)
	Signal the image thread that the update, cull and draw has begun for a new frame. More...

virtual void	signalEndFrame ()
	Signal the image thread that the update, cull and draw dispatch has completed. More...

int	cancel ()

Public Member Functions inherited from osg::Referenced
	Referenced (bool threadSafeRefUnref)

	Referenced (const Referenced &)

Referenced &	operator= (const Referenced &)

virtual void	setThreadSafeRefUnref (bool threadSafe)
	Set whether to use a mutex to ensure ref() and unref() are thread safe. More...

bool	getThreadSafeRefUnref () const
	Get whether a mutex is used to ensure ref() and unref() are thread safe. More...

bool	getThreadSafeRefUnref () const

OpenThreads::Mutex *	getRefMutex () const
	Get the mutex used to ensure thread safety of ref()/unref(). More...

OpenThreads::Mutex *	getRefMutex () const

int	ref () const
	Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

int	unref () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	unref_nodelete () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...

int	referenceCount () const
	Return the number of pointers currently referencing this object. More...

ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL. More...

ObserverSet *	getOrCreateObserverSet () const
	Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...

void	addObserver (Observer *observer) const
	Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...

void	removeObserver (Observer *observer) const
	Remove Observer that is observing this object. More...

Protected Types
typedef std::vector< osg::ref_ptr< ImageThread > >	ImageThreads

Protected Attributes
OpenThreads::Mutex	_run_mutex

bool	_startThreadCalled

bool	_done

bool	_databasePagerThreadPaused

OpenThreads::Atomic	_frameNumber

OpenThreads::Mutex	_ir_mutex

osg::ref_ptr< ReadQueue >	_readQueue

ImageThreads	_imageThreads

osg::ref_ptr< RequestQueue >	_completedQueue

double	_preLoadTime

Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet

OpenThreads::Atomic	_refCount

OpenThreads::Mutex *	_refMutex

int	_refCount

void *	_observerSet

Friends
struct	SortFileRequestFunctor

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
	Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...

static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
	Set whether reference counting should use a mutex for thread safe reference counting. More...

static bool	getThreadSafeReferenceCounting ()
	Get whether reference counting is active. More...

static void	setDeleteHandler (DeleteHandler *handler)
	Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...

static DeleteHandler *	getDeleteHandler ()
	Get a DeleteHandler. More...

Protected Member Functions inherited from osg::Referenced
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const

void	deleteUsingDeleteHandler () const

Member Function Documentation

◆ requiresUpdateSceneGraph()

virtual bool osgDB::ImagePager::requiresUpdateSceneGraph ( ) const

virtual

Return true if there are pending updates to the scene graph that require a call to updateSceneGraph(double).

◆ signalBeginFrame()

virtual void osgDB::ImagePager::signalBeginFrame ( const osg::FrameStamp * framestamp )

virtual

Signal the image thread that the update, cull and draw has begun for a new frame.

Note, this is called by the application so that the image pager can go to sleep while the CPU is busy on the main rendering threads.

◆ signalEndFrame()

virtual void osgDB::ImagePager::signalEndFrame ( )

virtual

Signal the image thread that the update, cull and draw dispatch has completed.

Note, this is called by the application so that the image pager can go to wake back up now the main rendering threads are iddle waiting for the next frame.

◆ updateSceneGraph()

virtual void osgDB::ImagePager::updateSceneGraph ( const osg::FrameStamp & frameStamp )

virtual

Merge the changes to the scene graph.

The documentation for this class was generated from the following file:

/home/karlu20/private/installs/OpenSceneGraph/include/osgDB/ImagePager

Classes

Public Member Functions

Protected Types

Protected Attributes

Friends

Additional Inherited Members

Member Function Documentation

◆ requiresUpdateSceneGraph()

◆ signalBeginFrame()

◆ signalEndFrame()

◆ updateSceneGraph()